Which engine is it? ... 3.1L
IN fact, do you have the Check Engine Light ON? You can read the codes using this:
www.avigex.ca/readingcodes.jpg ....couldn't get this to load. wasn't sure what you meant, either.
This component (CPS) is impaired by heat and with time it fails and for a '93, it is...almost overdue. Changing it on the 3.8 is not too easy... what about on a 3.1L
The problem, in a little more detail, is this. Driving short trips, not a problem. Driving 25-30 miles or more is where things get tricky. After cruising along, vehicle starts to buck a little like it wants to stall when you start to slow down or apply the brake. When you stop, it stalls, sometimes stalling even before you reach a complete stop. You can restart the vehicle immediately, but when you try to shift into drive, it stalls again...and again...and again. If you let it sit for 5, 10 minutes, you're good to go.
Hope this helps. And thanks for your help!